Needle-threader.



No. 882,204. PATENTED MAR. 17, 1908.

M. E. & A. TH. LASSEN.

NEEDLE THREADER.

APPLICATION FILED NOV.25,-1907.

INVENTORS r K 9, flawZZassm 57225072 flasaw, AWIWJ:

runs 0:. WASHINGTON u c W1 TNESSES UNITED sTAr s MAX E. LASSEN, OF BROOKLYN, NEW YORK, AND ANTON Tl'l. LASSEN, OF

PATENT OFFICE.

CHICAGO, ILLINOIS.

NEEDLE-THREADER.

To all whom it may concern:

Be it known that we, MAX E. LASSEN and ANTON THORVALD LASSEN, subjects of the King of Denmark, residing respectively at Brooklyn, New York, and Chicago, Illinois, have invented certain new and useful Improvements in N eedle-Threaders, of which the following is a specification.

Thisinvention relates to devices for threading needles; and it has for its object to simplify and improve the construction and operation of this class of devices.

WVith these and other ends in view, which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims.

In the accompanying drawing has been illustrated a simple and preferred form of the invention; it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the invention may be resorted to, when desired.

In the drawing: Figure 1 is aperspective view of the improved needle threader, showing the end of a thread applied thereto previous to threading a needle. Fig. 2 is a perspective view, showing the device as it appears when the thread is pushed through the eye of the needle, the latter being shown in its pro er relative position. Fig. 3 is a longitudina sectional view of the improved needle threading device. Fig. 4 is a longitudinal sectional view taken at right angles to Fig. 3. Fig. 5 is an end View. Fig. 6 is a perspective detail view of the member which is used for pushing the thread through the needle eye.

Corresponding parts in the several figures are denoted by like characters of reference.

The improved needle threading device comprises a casing 1, consisting preferably of .a cylindrical tube, closed at one end, as

shown at 2.

Fitted in the open or outer end of the casing 1, for longitudinal movement in said casing, is a plunger 3, which is forced in an out- Ward direction by the action of a coiled spring 4 whichis seated in the inner end of the casing, bearing against the bottom or closed end of the latter. The outer end of the plunger 3 is provided with an angular or V-shaped notch 5, from the inner end of Specification of Letters Patent.

Application filed November Patented March 17, 1908. 25, 1907. Serial No. 403,721.

{which a slot 6 extends in an inward direction; the notch 5 is intersected, preferably approximately at right angles, by a slot or notch 7, whereby the outer extremities of the prongs or fingers 8, 8 separated by the slot 6 are bifurcated; the bottom of the slot 7 is preferably inclined in opposite directions, toward the perimeter of the plunger, as will be clearly seen in Fig. 4 of the drawing.

P designates a pusher or tongue which consists of a T-shaped piece of steel or other suitable metal; said tongue bein made extremely thin and slender so that the shank 9 thereof will readily pass throu h the eye of a fine needle, in addition to the doubled end of the thread which is to be pushed through the needle eye. The extremlties of the head 10 of the tongue P are fitted and firmly secured in diametrically opposite notches 11 at the outer extremity of the tubular casing 1 said head 10 operating in the slot 6 of the plunger 3, which latter is thereby retained in position within the sleeve or casing 1 in such a manner, however, that the slotted portion of the plunger will be normally projected beyond the open end of the casing by the action of the spring 4 within the latter. It will be observed that the shank 9 of the ton ue P is of a width at least equal to the width of the transverse slot 7; the slot 6 is of a width merely sufficient to accommodate the eye end of a needle.

The improved threading device is adapted for the purpose of threadin ordinary sewing needles as well as the needles of sewin machines. In operation, the end of the thread is laid in the slot 7, and the eye end of the needle is disposed in the intersecting slot 6, with the eye facing the shank 9 of the tongue; by pressing or forcing the needle in an inward direction, or, conversely, by pressing the device against the needle, the plunger 3 will be forced inward within the casing against the tension of the spring 4, and the shank of the ton ue will force the end of the thread through the eye of the needle, as will clearly appear by reference to Fi 2 of the drawings, the thread being doubled upon the flat shank of the tongue; the needle is then separated from the threading device, the plunger of the latter being restored to normal position by the action of the s ring, and the thread may then be drawn ful y through the needle eye by the finger of the operator.

This improved threadin device, as will be seen from the foregoing description, is ex tremely simple, and is capable of being easily manipulated with most satisfactory results. The construction is simple and inexpensive; the ton ue may be firmly retained in the slots or note es '11 of the casing by simply pinchlng or compressing the material of which the latter is made upon the extremities of the head of the tongue; and the latter will thus serve to retain the plunger and the springin the. casing. The parts may thus be easily and efficiently assembled and the device may be manufactured at a small expense. Havin thus described the invention, what is c aimed is:

1. 'Ina needle threader, atubular casing closed at one end, a spring. actuated plunger slidable in said casing and provided at its outer extremity with a V-shaped notch and a slot extendin inwardly therefrom, and an auxiliary sha ow slot intersecting the first slot; and a T-shaped pusher or tongue hav ing an outward extending shank, and a head secured in the casing and operating in the first mentioned slot of the plunger.

2. A needle threader com rising. a tubular casing closed at one end, a p unger slidable in the open end of the casing and provided with intersecting slots at its outer extremity and with an angular notch communicating with one of the slots, a T-shaped ton ue secured at the outer end of the casing an operating in one of the slots of 'the'plunger, and a spring seated in the casing and forcing the plunger in an outward direction.

ln-testimony whereofwe afiix oursigna-- 35 tures in presence'of two witnesses.

MAX E. LASSEN. ANTON TH.- LASSEN Witnesses as to'Max E. Lassen:

GRACE CHARLES, AUGUST C. HUCHTHAUSEN. Witnesses as to- Anton Th. Lassen:

ROBERT H; COWDREY, ARTHUR G. HARLER. 

